In Server Core installations a DHCP address is provided by default.
If you need to edit it, use these steps:
At a command prompt, type the following:
netsh interface ipv4 show interfaces
Make a note of the number shown in the Idx column of the output for your network adapter. If your computer has more than one network adapter, make a note of the number corresponding to the network adapter for which you wish to set a static IP address. At the command prompt, type:
netsh interface ipv4 set address name="<ID>" source=static address=<StaticIP> mask=<SubnetMask> gateway=<DefaultGateway>
Where: ID is the number from step 2 above. StaticIP is the static IP address that you are setting. SubnetMask is the subnet mask for the IP address. DefaultGateway is the default gateway. At the command prompt, type:
netsh interface ipv4 add dnsserver name="<ID>" address=<DNSIP>index=1
Where: ID is the number from step 2 above. DNSIP is the IP address of your DNS server.